Patents by Inventor Laurent Jablonski

Laurent Jablonski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11885268
    Abstract: An assembly for a turbine engine extending along an axis, includes a stator, a low-pressure compressor shaft, a low-pressure compressor comprising a rotor comprising a drum rotatably coupled to the shaft of the low-pressure compressor, and a fan comprising a disk rotatably coupled to the shaft of the low-pressure compressor. The drum has a radially internal part rotatably coupled to the shaft of the low-pressure compressor and a radially external part fixed to the radially internal part by means of detachable fixing means. A first axial retention means is configured to axially and detachably retain the disk of the fan relative to the shaft of the low-pressure compressor. A second axial retention means is configured to axially and detachably retain the radially internal part of the drum relative to the shaft of the low-pressure compressor.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: January 30, 2024
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Philippe Gérard Edmond Joly, Jean-Marc Claude Perrollaz, Laurent Jablonski
  • Patent number: 11873076
    Abstract: An assembly including a propeller blade and a pitch adjustment system for setting the pitch of the blade. A root of the blade has a bulb and the pitch adjustment system for setting the pitch of the blade includes a cup having an upper opening; —a retaining ring, which extends around the bulb, is restricted at least in terms of axial movement towards the opening relative to the cup and has a bearing face to inhibit axial movement of the root towards the opening The pitch adjustment system being further includes a lower seat for the root to engage the cup, the seat and/or the retaining ring being mounted so as to be capable of axial translation relative to the cup by at least one clamping mechanism.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: January 16, 2024
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Clément Cottet, Vivien Mickaël Courtier, Vincent Joudon, Arnaud Langlois, Régis Eugène Henri Servant, Laurent Jablonski
  • Patent number: 11859508
    Abstract: Disclosed is a compressor of a dual-flow aircraft turboshaft engine extending longitudinally along an axis X, the compressor comprising a low-pressure compressor, a high-pressure compressor and an intermediate casing axially connecting the low-pressure compressor and the high-pressure compressor, the high-pressure compressor comprising an inlet guide stator comprising a retaining ring, an outer high-pressure compressor casing and a plurality of vanes, the compressor comprising an immobilising device comprising at least one first member secured to the intermediate casing and at least one second member secured to the retaining ring and configured to cooperate with the first member in order to prevent tangential movement while allowing axial movement and radial movement of the retaining ring relative to the intermediate casing according to the axis X.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: January 2, 2024
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Thomas Nolwenn Emmanuel Delahaye, Blaise Bergon, Laurent Jablonski, Lilian Yann Dumas, Thomas Etienne Camille Marie Van De Kerckhove, Noël Joseph Camille Robin, Guillaume Sevi
  • Publication number: 20230407749
    Abstract: A turbine engine assembly including a first rotor element and a second rotor element extending around a longitudinal axis X and coupled to one another by a gear coupling, the first rotor element including teeth and the second rotor element including complementary teeth which extend along the longitudinal axis and form the gear coupling. The first and second rotor elements each include a first and a second radial flange which are annular and arranged facing one another, and the assembly includes a sealing device configured to ensure that the gear coupling is sealed at the first and second flanges.
    Type: Application
    Filed: November 17, 2021
    Publication date: December 21, 2023
    Inventors: Kamel BENDERRADJI, Delphine Hermance Maxime PARENT, Pauline Anne FRECHE, Joel Robert MATHIEU, Laurent JABLONSKI
  • Patent number: 11828191
    Abstract: A turbomachine assembly includes a casing, first and second rotors, and a damper. The first rotor includes a disk and blades and is movable in rotation relative to the casing. The second rotor is movable relative to the casing around a longitudinal axis. The damper damps a movement of the first rotor relative to the second rotor. The damper includes first to third parts. The first part bears on the first rotor in a first area extending over a first angular sector around the longitudinal axis and applies a first centrifugal force on the first rotor. The second part bears on the first rotor in a second area that is smaller than the first angular sector and extends over a second angular sector around the longitudinal axis. The third part bears on the second rotor and applies a second centrifugal force on the second rotor.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: November 28, 2023
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Philippe Gérard Edmond Joly, Romain Nicolas Lagarde, Jean-Marc Claude Perrollaz, Laurent Jablonski, François Jean Comin, Edouard Antoine Dominique Marie De Jaeghere, Charles Jean-Pierre Douguet
  • Patent number: 11808170
    Abstract: The present invention relates to a turbomachine assembly, comprising: a casing (10), a first rotor (12) which is movable in rotation with respect to the casing (10) about a longitudinal axis (X-X), and comprising: *a disk (120), and *a plurality of blades (122) capable of flapping with respect to the disk (120) during a rotation of the first rotor (12) with respect to the casing (10), a second rotor (140) which is movable in rotation with respect to the casing (10) about the longitudinal axis (X-X), and a damper (2) which is configured to damp a displacement of the first rotor (12) with respect to the second rotor (140) in a plane orthogonal to the longitudinal axis (X-X), the displacement being caused by a flapping of at least one blade (122) among the plurality of blades (122), the damper (2) comprising: o a first bearing part (21): *bearing against the first rotor (12), and *being configured to apply a first centrifugal force (C1) to the first rotor (12), o a second bearing part (22): *bearing against the
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: November 7, 2023
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Philippe Gérard Edmond Joly, Romain Nicolas Lagarde, Jean-Marc Claude Perrollaz, Laurent Jablonski, François Jean Comin, Edouard Antoine Dominique Marie De Jaeghere, Charles Jean-Pierre Douguet
  • Patent number: 11808169
    Abstract: The present invention relates to an assembly for a turbomachine, comprising: a first rotor; a second rotor, and a damper (2) configured to damp a displacement of the first rotor relative to the second rotor, the damper comprising: a first portion (21) bearing against the first rotor and having a first thickness, a second portion (22) bearing against the second rotor and having a second radial thickness, and a third portion (23) connecting the first portion (21) to the second portion (22) and having a third radial thickness, wherein the third radial thickness is greater than at least one of the first radial thickness and the second radial thickness.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: November 7, 2023
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Philippe Gérard Edmond Joly, Romain Nicolas Lagarde, Jean-Marc Claude Perrollaz, Laurent Jablonski, François Jean Comin, Edouard Antoine Dominique Marie De Jaeghere, Charles Jean-Pierre Douguet
  • Publication number: 20230294817
    Abstract: Disclosed is a variable pitch propeller blade for an aircraft turbine engine. The blade includes an airfoil connected to a root, the root having a body housed in an annular barrel that extends around a pitch axis of the blade, the body including a free end opposite the airfoil; a shoulder towards the airfoil; and a bulb located between the free end and the shoulder. The bulb can have a cross-section, referred to as the middle section, that has a maximum value Sm, and the barrel can be affixed to the body and covers and matches at least a portion of the bulb and the shoulder.
    Type: Application
    Filed: July 15, 2021
    Publication date: September 21, 2023
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Vincent JOUDON, Clément COTTET, Vivien Mickaël COURTIER, Laurent JABLONSKI, Régis Eugène Henri SERVANT
  • Publication number: 20230286649
    Abstract: An assembly comprising a propeller blade and its system for angularly adjusting the pitch of the blade including a bowl which is radially delimited by an annular wall (44)-extending about an axis for adjusting the pitch of the blade, the bowl having a bottom wall, a free lower end of the root being fitted axially into a complementary housing of the bottom wall in order to rotatably connect the bowl and the blade about the pitch-adjustment axis. The root of the blade comprises a first limiting face that engages with a first abutment face of the bowl to limit the rotation of the blade in the event of breakage of the lower end of the root.
    Type: Application
    Filed: July 15, 2021
    Publication date: September 14, 2023
    Inventors: Clement COTTET, Vivien Mickael COURTIER, Vincent JOUDON, Regis Eugene Henri SERVANT, Laurent JABLONSKI
  • Publication number: 20230286644
    Abstract: An assembly including a propeller blade and a pitch adjustment system for setting the pitch of the blade. A root of the blade has a bulb and the pitch adjustment system for setting the pitch of the blade includes a cup having an upper opening; a retaining ring, which extends around the bulb, is restricted at least in terms of axial movement towards the opening relative to the cup and has a bearing face to inhibit axial movement of the root towards the opening The pitch adjustment system being further includes a lower seat for the root to engage the cup, the seat and/or the retaining ring being mounted so as to be capable of axial translation relative to the cup by at least one clamping mechanism.
    Type: Application
    Filed: July 15, 2021
    Publication date: September 14, 2023
    Inventors: Clément COTTET, Vivien Mickaël COURTIER, Vincent JOUDON, Arnaud LANGLOIS, Régis Eugène Henri SERVANT, Laurent JABLONSKI
  • Patent number: 11585229
    Abstract: The invention relates to a bladed disk (1) of a fan, comprising: a hub (10) comprising an outer radial platform (13) designed so as to define an inner gas flow stream in the turbomachine, a plurality of blades (20) comprising a root (23) connected to the platform (13), a leading edge (21) and a trailing edge (22), a groove formed in the platform (13) around part of the root (23) of each blade (20) in an area adjacent to the leading edge (21) and/or the trailing edge (22), and a joint (30) placed in the groove (15) in such a way that it extends in the extension of the radially outer face (14) of the platform (13) in order to ensure a continuity of the inner flow stream.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: February 21, 2023
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Laurent Jablonski, François Jean Comin, Philippe Gérard Edmond Joly, Jean-Marc Claude Perrollaz, Anthony Lafitte, Rémi Roland Robert Mercier
  • Publication number: 20230038378
    Abstract: An assembly for a turbine engine extending along an axis, includes a stator, a low-pressure compressor shaft, a low-pressure compressor comprising a rotor comprising a drum rotatably coupled to the shaft of the low-pressure compressor, and a fan comprising a disk rotatably coupled to the shaft of the low-pressure compressor. The drum has a radially internal part rotatably coupled to the shaft of the low-pressure compressor and a radially external part fixed to the radially internal part by means of detachable fixing means. A first axial retention means is configured to axially and detachably retain the disk of the fan relative to the shaft of the low-pressure compressor. A second axial retention means is configured to axially and detachably retain the radially internal part of the drum relative to the shaft of the low-pressure compressor.
    Type: Application
    Filed: January 6, 2021
    Publication date: February 9, 2023
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Philippe Gérard Edmond JOLY, Jean-Marc Claude PERROLLAZ, Laurent JABLONSKI
  • Patent number: 11536157
    Abstract: The invention relates to an assembly (1) for a turbomachine comprising: a first rotor module (2) comprising a first blade (20), a second rotor module (3), connected to the first rotor module (2), and comprising a second blade with a length less than the first blade (20), and a damping device (4) extending with at least one component along a turbomachine longitudinal axis (X-X), characterized in that the damping device (4) is annular while extending circumferentially around the turbomachine longitudinal axis (X-X) and in that the damping device (4) comprises a first radial external surface (40) supported with friction against the first module (2) as well as a second radial external surface (42) supported with friction against the second module (3), so as to couple the modules (2, 3) in order to damp their respective vibrational movements during operation.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: December 27, 2022
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Philippe Gérard Edmond Joly, François Jean Comin, Charles Jean-Pierre Douguet, Laurent Jablonski, Romain Nicolas LaGarde, Jean-Marc Claude Perrollaz
  • Patent number: 11466571
    Abstract: A turbomachine assembly is provided. The assembly includes: a first rotor module including a first blade, a second rotor module, connected to the first rotor module, and including a second blade of smaller length than the first blade, and a damping device including a plurality of first radial external surfaces supported with friction against the first module. The damping device is stepped, and includes a second radial external surface supported with friction against the second module, so as to couple the modules for the purpose of damping their respective vibrational movements during operation.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: October 11, 2022
    Assignee: Safran Aircraft Engines
    Inventors: Philippe Gerard Edmond Joly, Marie-Oceane Parent, Francois Jean Comin, Romain Nicolas Lagarde, Jean-Marc Claude Perrollaz, Laurent Jablonski, Charles Jean-Pierre Douguet
  • Publication number: 20220299040
    Abstract: A turbomachine assembly is provided. The assembly includes: a first rotor module including a first blade, a second rotor module, connected to the first rotor module, and including a second blade of smaller length than the first blade, and a damping device including a plurality of first radial external surfaces supported with friction against the first module. The damping device is stepped, and includes a second radial external surface supported with friction against the second module, so as to couple the modules for the purpose of damping their respective vibrational movements during operation.
    Type: Application
    Filed: December 17, 2018
    Publication date: September 22, 2022
    Applicant: Safran Aircraft Engines
    Inventors: Philippe Gerard Edmond JOLY, Marie-Oceane PARENT, Francois Jean COMIN, Romain Nicolas LAGARDE, Jean-Marc Claude PERROLLAZ, Laurent JABLONSKI, Charles Jean-Pierre DOUGUET
  • Patent number: 11421534
    Abstract: An assembly for a turbomachine including a first rotor module (2) with a first blade (20), and a second rotor module (3), connected to the first rotor module (2). The second rotor module includes a second blade with a smaller length than the first blade (20). A damping device (4) is attached to the second rotor module (3) and includes a radial external surface (40) supported with friction against the first module (2), so as to couple the modules (2, 3) for the purpose of damping their respective vibrational movements during operation.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: August 23, 2022
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Philippe Gerard Edmond Joly, Francois Jean Comin, Laurent Jablonski, Romain Nicolas Lagarde, Jean-Marc Claude Perrollaz
  • Publication number: 20220251975
    Abstract: Disclosed is a compressor of a dual-flow aircraft turboshaft engine extending longitudinally along an axis X, the compressor comprising a low-pressure compressor, a high-pressure compressor and an intermediate casing axially connecting the low-pressure compressor and the high-pressure compressor, the high-pressure compressor comprising an inlet guide stator comprising a retaining ring, an outer high-pressure compressor casing and a plurality of vanes, the compressor comprising an immobilising device comprising at least one first member secured to the intermediate casing and at least one second member secured to the retaining ring and configured to cooperate with the first member in order to prevent tangential movement while allowing axial movement and radial movement of the retaining ring relative to the intermediate casing according to the axis X.
    Type: Application
    Filed: July 10, 2020
    Publication date: August 11, 2022
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Thomas Nolwenn Emmanuel Delahaye, Blaise Bergon, Laurent Jablonski, Lilian Yann Dumas, Thomas Etienne Camille Marie Van De Kerckhove, Noël Joseph Camille Robin, Guillaume Sevi
  • Publication number: 20220228495
    Abstract: The present invention relates to a turbomachine assembly, comprising: a casing (10), a first rotor (12) which is movable in rotation with respect to the casing (10) about a longitudinal axis (X-X), and comprising: *a disk (120), and *a plurality of blades (122) capable of flapping with respect to the disk (120) during a rotation of the first rotor (12) with respect to the casing (10), a second rotor (140) which is movable in rotation with respect to the casing (10) about the longitudinal axis (X-X), and a damper (2) which is configured to damp a displacement of the first rotor (12) with respect to the second rotor (140) in a plane orthogonal to the longitudinal axis (X-X), the displacement being caused by a flapping of at least one blade (122) among the plurality of blades (122), the damper (2) comprising: o a first bearing part (21): *bearing against the first rotor (12), and *being configured to apply a first centrifugal force (C1) to the first rotor (12), o a second bearing part (22): *bearing against the
    Type: Application
    Filed: May 27, 2020
    Publication date: July 21, 2022
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Philippe Gérard Edmond JOLY, Romain Nicolas LAGARDE, Jean-Marc Claude PERROLLAZ, Laurent JABLONSKI, François Jean COMIN, Edouard Antoine Dominique Marie DE JAEGHERE, Charles Jean-Pierre DOUGUET
  • Publication number: 20220228491
    Abstract: A turbomachine assembly includes a casing, first and second rotors, and a damper. The first rotor includes a disk and blades and is movable in rotation relative to the casing. The second rotor is movable relative to the casing around a longitudinal axis. The damper damps a movement of the first rotor relative to the second rotor. The damper includes first to third parts. The first part bears on the first rotor in a first area extending over a first angular sector around the longitudinal axis and applies a first centrifugal force on the first rotor. The second part bears on the first rotor in a second area that is smaller than the first angular sector and extends over a second angular sector around the longitudinal axis. The third part bears on the second rotor and applies a second centrifugal force on the second rotor.
    Type: Application
    Filed: May 27, 2020
    Publication date: July 21, 2022
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Philippe Gérard Edmond JOLY, Romain Nicolas LAGARDE, Jean-Marc Claude PERROLLAZ, Laurent JABLONSKI, François Jean COMIN, Edouard Antoine Dominique Marie DE JAEGHERE, Charles Jean-Pierre DOUGUET
  • Publication number: 20220228494
    Abstract: The present invention reltues to an assembly Ru a turbomachine, comprising: a first rotor; a second rotor, and, a damper (2) configured to damp a displacement of the first rotor relative to the second rotor, the damper comprising: a first portion (21) bearing against the first rotor and having a first thickness, a second portion (22) bearing against the second rotor and having a second radial thickness, and a third portion (23) connecting the first portion (21) to the second portion (22) and having a third radial thickness, wherein the third radial thickness is greater than at least one of the first radial thickness and the second radial thickness.
    Type: Application
    Filed: May 27, 2020
    Publication date: July 21, 2022
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Philippe Gérard Edmond JOLY, Romain Nicolas LAGARDE, Jean-Marc Claude PERROLLAZ, Laurent JABLONSKI, François Jean COMIN, Edouard Antoine Dominique DE JAEGHERE, Charles Jean-Pierre DOUGUET